It works on the principle that similarities can create categories.
mental
Amphibean
Mammalia
Aquatic Mammals
scientific work is F*D=W F=force D=distance W=work
… They experimented more.
Aristotle's work was purely theoretical. Whether you define it as scientific or not depends on your definition of scientific. He did not use experiments to prove his work, and if he did he did not conduct them in a scientific way (using the scientific method).
Is reliable
no
yes the scientific method does work . results of tests and expirements prove the accuracy of this method of uncovering science.
Scientific work is something like a exsperiment and you will need some objects to do a scientific work.Human activitys is fun and you could even do scientific work and human activitys together.
A laboratory is a workshop where scientific experiments or practical scientific work is carried out.